The Regressed Saint Saves the Devil

Upon returning to the past, Arina made one resolution. Once she escaped her terminally ill life, she would leave to live a life entirely for herself. So she goes to her fiancé, descended from a demon whose blood can cure incurable diseases…. “Are you threatening me right now?” “I’m telling you the truth.” “I don’t need your help. So get out! Disappear from before my eyes!” My ill-tempered fiancé is no joke, and without understanding my feelings, he keeps pushing me away. Though I desperately calmed his rampaging magic and quietly disappeared after preventing the misfortune surrounding him…. “No matter where you are, I’ll find you. Arina. —Your future husband—” Wait, why was it splashed across the morning newspaper?!

(Source: NovelDB)